Impact of Ultrasonics on Sorption of Cellulose Fibres

Abstract

The impact of ultrasonic treatment (wave frequency 30 kHz, water medium and ambient temperature) on the sorption of cellulose fibres was investigated. The effect of ultrasonic waves on cotton, viscose and Lyocell fibres was found out by examining absorption of moisture, hygroscopic property, retentivity of 2-propanol as well as dye absorption power on untreated and ultrasonically treated fibre samples. The test results disclose that modifications of tested properties are caused by ultrasonic treatment. It is beyond doubt that ultrasonic treatment causes an increase in absorption of moisture, a decrease in retentivity of dripping water as well as a certain decrease of possible retentivity of 2-propanol after an ultrasonic treatment of most samples. A positive effect of ultrasonic treatment on an increase in dye absorption power was found out beyond doubt only in cotton fibres.